PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-10:42:50
G03     249.2          71.2                6.6 +/-    0.80       6.9 +/-    0.80  0.040 / 0.050
G09     299.2          12.6                5.5 +/-   15.23      14.4 +/-   15.23  0.040 / 0.050
G14     94.5           18.1                2.6 +/-    2.49       6.1 +/-    2.49  0.030 / 0.040
G16     138.5          52.9                8.4 +/-    0.73      10.2 +/-    0.73  0.030 / 0.030
G22     197.9          60.4                7.1 +/-    0.96       8.1 +/-    0.96  0.100 / 0.200
G23     316.0          46.2                5.4 +/-    0.75       7.2 +/-    0.75  0.100 / 0.240
G26     81.2           54.4                5.5 +/-    1.18       6.6 +/-    1.18  0.050 / 0.080
G31     49.6           23.6                2.6 +/-    3.09       5.2 +/-    3.09  0.080 / 0.070